CN107078767B

CN107078767B - Method, device and system for predicting antenna reconfiguration

Info

Publication number: CN107078767B
Application number: CN201480083530.5A
Authority: CN
Inventors: 李铕; 王晓娜; 唐小勇
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2014-12-31
Filing date: 2014-12-31
Publication date: 2020-09-04
Anticipated expiration: 2034-12-31
Also published as: CN107078767A; WO2016106669A1

Abstract

The invention provides a method, a device and a system for predicting antenna reconfiguration. The method comprises the following steps: obtaining first prediction antenna configuration information according to antenna structure information, a first channel signal-to-noise ratio and a first channel correlation metric of the mobile equipment, wherein the first prediction antenna configuration information comprises an identifier of a prediction antenna; the first predicted antenna configuration information is sent to the mobile device. The channel information obtained by adopting the prediction antenna configured by the invention can accurately reflect the channel condition of the predicted antenna.

Description

Method, device and system for predicting antenna reconfiguration

Technical Field

The present invention relates to communications technologies, and in particular, to a method, an apparatus, and a system for predicting antenna reconfiguration.

Background

Mobile devices moving at high speed face the problem of channel feedback real-time. Taking a time division long term evolution (TD-LTE) system as an example, if the uplink and downlink ratio of a subframe is 2, there is an uplink subframe for the mobile device to report the measured channel information to the base station or send an uplink pilot signal for the base station to measure every 5 milliseconds. Further, both the processing of the mobile device and the processing of the base station introduce a time delay, and the channel information of the mobile device at a certain time is often used after 10 milliseconds, at this time, the channel information cannot accurately reflect the current environment of the mobile device, and the precoding processing based on the channel information causes the reduction of the system throughput.

The prior art introduces predictive antenna techniques to solve the channel estimation problem for mobile devices moving at high speed. As shown in fig. 1, the mobile device 200 includes a predicted antenna 10 and an alternative antenna 20, and the mobile device 200 travels at a speed V, pointing along an arrow. The predicted antenna 10 is always located in front of the alternative antenna 20, and the predicted antenna 10 will be at t₁The channel information fed back at time is equivalent to the alternative antenna 20 at t₁Channel information at time + delta _ t, i.e. at time t the base station 100₁At time + delt _ t, data transmitted from the mobile device 200 is precoded based on the channel information. Wherein, for a predicted antenna, those skilled in the art can understand it as any antenna in the mobile device, and channel estimation and data transmission are performed between the mobile device and the base station through the predicted antenna; the alternative antenna is only used for data transmission, the data transmission of the alternative antenna is based on the channel information estimated by the prediction antenna, specifically, the alternative antenna equivalently obtains the channel information of the alternative antenna according to the channel information estimated by the prediction antenna, and the equivalent obtained channel information is adopted for data transmission.

However, for a mobile device, such as a train or a train car, with a large-scale antenna array deployed, the SNR/RSRP may be greatly different between different antennas. Taking a train with 11 loaded cars as an example, wherein each car is 23 meters long, the difference between the received signal strength of the antenna at the head of the train and the received signal strength of the antenna at the tail of the train is up to 13 dB. In addition, when a mobile device deploying a large-scale antenna array passes through multiple cells, the received signal strength of antennas at different positions on the mobile device may also be greatly different due to different distances between the mobile device and a base station where the cells are located and different channel environments where the cells are located. Therefore, the channel information predicted by the above-mentioned predicted antenna technology cannot accurately reflect the channel condition of the predicted antenna, and the throughput of the system is seriously affected by the precoding processing according to the inaccurate channel information.

Disclosure of Invention

The invention provides a method, a device and a system for reconfiguring a prediction antenna, which are used for accurately reflecting the channel condition of the predicted antenna based on channel information fed back by mobile equipment with a large-scale antenna array, thereby ensuring the throughput of the system.

In a first aspect, the present invention provides a method for predicting antenna reconfiguration, where the method includes:

a first base station acquires a first channel signal-to-noise ratio and a first channel correlation measurement, wherein the first channel signal-to-noise ratio and the first channel correlation measurement are the signal-to-noise ratio and the correlation measurement of a first channel used for communication between mobile equipment and the first base station, and the mobile equipment comprises a plurality of antennas;

the first base station obtains a prediction range corresponding to the first channel signal-to-noise ratio and the first channel correlation metric according to the mapping relation between the signal-to-noise ratio and the correlation metric and the prediction range, wherein the prediction range is the distance between an alternative antenna for data transmission based on channel information estimated by a prediction antenna and the prediction antenna;

the first base station obtains the first predicted antenna configuration information according to the predicted range and the antenna structure information of the mobile equipment, wherein the first predicted antenna configuration information comprises the identification of the predicted antenna;

the first base station sends the first predicted antenna configuration information to the mobile device.

With reference to the first aspect, in a first possible implementation manner of the first aspect, the obtaining, by the first base station, the first predicted antenna configuration information according to the predicted range and the antenna structure information of the mobile device includes:

the first base station determines a group where the antenna using the first channel is located by taking the position where the antenna using the first channel is located as a circle center and the prediction range as a radius;

the first base station determines the antenna with the largest channel signal-to-noise ratio in the group as the predicted antenna;

the first base station uses the information of the group and the predicted antenna as the first predicted antenna configuration information, and the first predicted antenna configuration information further includes an identifier of an alternative antenna served by the predicted antenna.

With reference to the first aspect, in a second possible implementation manner of the first aspect, the obtaining, by the first base station, the first predicted antenna configuration information according to the predicted range and the antenna structure information of the mobile device includes:

the first base station determining an antenna using the first channel as a predicted antenna;

the first base station determines a group where the predicted antenna is located by taking the position where the predicted antenna is located as a circle center and the predicted range as a radius;

With reference to the first aspect and any one of the first to second possible implementation manners of the first aspect, in a third possible implementation manner of the first aspect, before the first base station obtains the first predicted antenna configuration information according to the predicted range and the antenna structure information of the mobile device, the method further includes:

the first base station judges the signal-to-noise ratio of the first channel and the size of a preset threshold;

and when the first channel signal-to-noise ratio is greater than or equal to the preset threshold value, the first base station obtains first prediction antenna configuration information according to the prediction range and the antenna structure information of the mobile equipment.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, when the first channel signal-to-noise ratio is smaller than the preset threshold, the obtaining, by the first base station, first predicted antenna configuration information according to the predicted range and the antenna structure information of the mobile device includes:

the first base station sends the antenna structure information of the mobile equipment and a second channel signal-to-noise ratio to a second base station, wherein the second channel signal-to-noise ratio is the signal-to-noise ratio of a second channel used for communication between the mobile equipment and the second base station, and the second base station is one or more adjacent base stations of the first base station;

and the first base station acquires the first predicted antenna configuration information according to second predicted antenna configuration information fed back by the second base station, wherein the second predicted antenna configuration information is determined by the second base station according to a second channel correlation metric, antenna structure information of the mobile equipment and a second channel signal-to-noise ratio.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the obtaining, by the first base station, the first predicted antenna configuration information according to the second predicted antenna configuration information fed back by the second base station includes:

the first base station obtains the first predicted antenna configuration information according to a sparsest principle based on second predicted antenna configuration information fed back by the second base station, wherein the first predicted antenna configuration information further includes an identifier of a serving base station of a predicted antenna of the mobile device, and the serving base station includes the first base station and the second base station.

With reference to the first aspect, or any one of the first to fifth possible implementation manners of the first aspect, in a sixth possible implementation manner of the first aspect, the first channel signal-to-noise ratio and the first channel correlation metric are obtained by the mobile device using a preset prediction antenna measurement, where the preset prediction antenna is configured by the mobile device by default or is configured for the mobile device by the first base station.

In a second aspect, the present invention provides a method for predicting antenna reconfiguration, the method comprising:

the method comprises the steps that a mobile device obtains a channel signal-to-noise ratio and a correlation metric, wherein the channel signal-to-noise ratio and the correlation metric are the signal-to-noise ratio and the correlation metric of a channel used for communication between the mobile device and a base station, and the mobile device comprises a plurality of antennas;

the mobile equipment obtains a prediction range corresponding to the signal-to-noise ratio and the correlation metric of the channel according to the mapping relation between the signal-to-noise ratio and the correlation metric and the prediction range, wherein the prediction range is the distance between an alternative antenna for data transmission based on channel information estimated by a prediction antenna and the prediction antenna;

and the mobile equipment configures the prediction antenna according to the prediction range and the antenna structure information of the mobile equipment.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the configuring, by the mobile device, a predicted antenna according to the predicted range and the antenna structure information of the mobile device includes:

the mobile equipment determines a group of the antennas with the channel signal-to-noise ratio and the correlation measurement by taking the position of the antenna with the channel signal-to-noise ratio and the correlation measurement as a circle center and the prediction range as a radius;

the mobile device configures the antenna with the largest channel signal-to-noise ratio in the group as the predicted antenna.

With reference to the second aspect, in a second possible implementation manner of the second aspect, the configuring, by the mobile device, a predicted antenna according to the predicted range and the antenna structure information of the mobile device includes:

the mobile device determining an antenna having the channel signal-to-noise ratio and correlation metric as the predicted antenna;

the mobile equipment determines the group where the predicted antenna is located by taking the position where the predicted antenna is located as the center of a circle and the predicted range as the radius;

the mobile device configures the predicted antenna to be a predicted antenna within the group.

With reference to the second aspect, or any one of the first to the second possible implementation manners of the second aspect, in a third possible implementation manner of the second aspect, before the mobile device obtains the prediction range corresponding to the signal-to-noise ratio and the correlation metric according to a mapping relationship between the signal-to-noise ratio and the correlation metric and the prediction range, the method further includes:

and the mobile equipment receives a system message, wherein the system message carries the mapping relation between the signal-to-noise ratio and the correlation metric and the prediction range.

With reference to the second aspect and any one of the first to third possible implementation manners of the second aspect, in a fourth possible implementation manner of the second aspect, after the mobile device configures a predicted antenna according to the predicted range and the antenna structure information of the mobile device, the method further includes:

the mobile equipment sends the configuration information of the predicted antenna to the base station;

the mobile device receives the configuration confirmation message of the predicted antenna fed back by the base station.

In a third aspect, the present invention provides a predicted antenna reconfiguration apparatus, where the apparatus includes an obtaining module, a processing module, and a sending module, where the processing module includes a first processing unit and a second processing unit;

the obtaining module is configured to obtain a first channel signal-to-noise ratio and a first channel correlation metric, where the first channel signal-to-noise ratio and the first channel correlation metric are signal-to-noise ratio and correlation metric of a first channel used for communication between a mobile device and the predicted antenna reconfiguration apparatus, and the mobile device includes multiple antennas;

the first processing unit is configured to obtain a prediction range corresponding to a first channel signal-to-noise ratio and a first channel correlation metric according to a mapping relationship between the signal-to-noise ratio and the correlation metric and the prediction range, where the prediction range is a distance between an alternative antenna for performing data transmission based on channel information estimated by a prediction antenna and the prediction antenna;

the second processing unit is configured to obtain the first predicted antenna configuration information according to the predicted range and the antenna structure information of the mobile device, where the first predicted antenna configuration information includes an identifier of the predicted antenna;

the sending module is configured to send the first predicted antenna configuration information to the mobile device.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the second processing unit is specifically configured to:

determining a group where the antenna using the first channel is located by taking the position where the antenna using the first channel is located as a circle center and the prediction range as a radius;

determining the antenna with the largest channel signal-to-noise ratio in the group as the predicted antenna;

using the information of the group and the predicted antenna as the first predicted antenna configuration information, where the first predicted antenna configuration information further includes an identifier of an alternative antenna served by the predicted antenna.

With reference to the third aspect, in a second possible implementation manner of the third aspect, the second processing unit is specifically configured to:

determining an antenna using the first channel as a predicted antenna;

determining a group where the predicted antenna is located by taking the position where the predicted antenna is located as a circle center and the predicted range as a radius;

With reference to the third aspect and any one of the first to second possible implementation manners of the third aspect, in a third possible implementation manner of the third aspect, the apparatus further includes: a judgment module for judging whether the received signal is correct,

the judging module is used for judging the signal-to-noise ratio of the first channel and the size of a preset threshold;

and if the judging module determines that the signal-to-noise ratio of the first channel is greater than or equal to the preset threshold, triggering the second processing unit to obtain first predicted antenna configuration information according to the predicted range and the antenna structure information of the mobile equipment.

With reference to the third possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, if the determining module determines that the first channel signal-to-noise ratio is smaller than the preset threshold, the second processing unit is specifically configured to:

sending antenna structure information of the mobile device and a second channel signal-to-noise ratio to a second base station, wherein the second channel signal-to-noise ratio is a signal-to-noise ratio of a second channel used for communication between the mobile device and the second base station, and the second base station is one or more neighboring base stations of the first base station;

and acquiring the first predicted antenna configuration information according to second predicted antenna configuration information fed back by the second base station, wherein the second predicted antenna configuration information is determined by the second base station according to a second channel correlation metric, antenna structure information of the mobile equipment and a second channel signal-to-noise ratio.

With reference to the fourth possible implementation manner of the third aspect, in a fifth possible implementation manner of the third aspect, when the second processing unit is configured to obtain the first predicted antenna configuration information according to the second predicted antenna configuration information fed back by the second base station, specifically:

and obtaining the first predicted antenna configuration information according to a sparsest principle based on second predicted antenna configuration information fed back by the second base station, wherein the first predicted antenna configuration information further comprises an identifier of a serving base station of a predicted antenna of the mobile device, and the serving base station comprises the base station integrated with the predicted antenna reconfiguration device and the second base station.

With reference to the third aspect or any one of the first to fifth possible implementation manners of the third aspect, in a sixth possible implementation manner of the third aspect, the first channel signal-to-noise ratio and the first channel correlation metric are obtained by the mobile device using a preset prediction antenna measurement, where the preset prediction antenna is configured by the mobile device by default or by a base station integrated with the prediction antenna reconfiguration apparatus.

In a fourth aspect, the present invention provides a system for predicting antenna reconfiguration, the system comprising:

a mobile device comprising a plurality of antennas, and the predictive antenna reconfiguration apparatus according to any one of the third aspects.

In a fifth aspect, the present invention provides a predicted antenna reconfiguration apparatus, including an obtaining module and a processing module, where the processing module includes a first processing unit and a second processing unit;

the acquiring module is configured to acquire a channel signal-to-noise ratio and a correlation metric, where the channel signal-to-noise ratio and the correlation metric are of a channel used for communication between the mobile device and a base station, and the mobile device includes multiple antennas;

the first processing unit is configured to obtain a prediction range corresponding to the channel signal-to-noise ratio and the correlation metric according to a mapping relationship between the signal-to-noise ratio and the correlation metric and the prediction range, where the prediction range is a distance between an alternative antenna for performing data transmission based on channel information estimated by a prediction antenna and the prediction antenna;

the second processing unit is configured to configure the predicted antenna according to the predicted range and the antenna structure information of the mobile device.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the second processing unit is specifically configured to:

determining a group of the antennas with the channel signal-to-noise ratio and the correlation measurement by taking the position of the antenna with the channel signal-to-noise ratio and the correlation measurement as a circle center and the prediction range as a radius;

and configuring the antenna with the largest channel signal-to-noise ratio in the group as the predicted antenna.

With reference to the fifth aspect, in a second possible implementation manner of the fifth aspect, the second processing unit is specifically configured to:

determining an antenna having the channel signal-to-noise ratio and correlation metric as the predicted antenna;

configuring the predicted antenna as a predicted antenna within the group.

With reference to the fifth aspect, or any one of the first to second possible implementation manners of the fifth aspect, in a third possible implementation manner of the fifth aspect, the apparatus further includes a first receiving module, configured to receive a system message, where the system message carries a mapping relationship between the signal-to-noise ratio and the correlation metric and the prediction range.

With reference to the fifth aspect and any one of the first to third possible implementation manners of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the apparatus further includes a sending module and a second receiving module,

the sending module is configured to send the configuration information of the predicted antenna to the base station;

the second receiving module is configured to receive the configuration confirmation message of the predicted antenna fed back by the base station.

With reference to the fifth aspect or any one of the first to fourth possible implementation manners of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, the predicted antenna reconfiguration apparatus is a mobile device, and the mobile device includes a plurality of antennas.

The invention provides a method, a device and a system for reconfiguring a prediction antenna, wherein a first base station obtains first prediction antenna configuration information according to antenna structure information, a first channel signal-to-noise ratio and a first channel correlation measurement of mobile equipment, and sends the first prediction antenna configuration information to the mobile equipment.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.

FIG. 1 is a diagram illustrating a model of a predictive antenna system according to the prior art;

fig. 2 is a flowchart illustrating a first embodiment of a method for predicting antenna reconfiguration according to the present invention;

FIG. 3a is a relationship of a prediction horizon with correlation and channel environment;

FIG. 3b is a graph of prediction range versus NMSE and channel environment;

fig. 4 is an exemplary diagram of first predicted antenna configuration information in a second embodiment of the predicted antenna reconfiguration method according to the present invention;

fig. 5 is a flowchart illustrating a third embodiment of a method for predicting antenna reconfiguration according to the present invention;

fig. 6 is an exemplary diagram of first predicted antenna configuration information in a third embodiment of the predicted antenna reconfiguration method according to the present invention;

fig. 7 is a flowchart illustrating a fourth method for predicting antenna reconfiguration according to the present invention;

fig. 8 is a flowchart illustrating a fifth embodiment of a method for predicting antenna reconfiguration according to the present invention;

FIG. 9 is a schematic structural diagram of a predicted antenna reconfiguration apparatus according to a first embodiment of the present invention;

FIG. 10 is a schematic structural diagram of a second predicted antenna reconfiguration apparatus according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of a third predicted antenna reconfiguration apparatus according to a third embodiment of the present invention;

fig. 12 is a schematic structural diagram of a fourth predicted antenna reconfiguration apparatus according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical scheme provided by the embodiment of the invention can be applied to various wireless communication networks, such as: a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a Universal Mobile Telecommunications (UMTS) system, a General Packet Radio Service (GPRS) system, a Long Term Evolution (LTE) system, an advanced long term evolution (LTE-a) system, a Worldwide Interoperability for Microwave Access (WiMAX) system, etc. The terms "network" and "system" are used interchangeably.

In the embodiment of the present invention, a Base Station (BS) may be a device that communicates with a mobile device or other communication stations, such as a relay station, and the base station may provide communication coverage in a specific physical area. For example, the Base Station may be a Base Transceiver Station (BTS) or a Base Station Controller (BSC) in GSM or CDMA; or Node B in UMTS or Radio Network Controller (RNC); or an evolved Node B (ENB or eNodeB) in LTE; alternatively, the present invention is not limited to this, and the present invention may be other access network devices that provide access services in a wireless communication network.

The embodiment of the invention provides a method, a device and a system for reconfiguring a prediction antenna, which are used for obtaining the configuration information of the prediction antenna through the antenna structure information, the signal-to-noise ratio of a channel and the correlation measurement of mobile equipment. And the channel measurement is carried out by using the prediction antenna configured according to the prediction antenna configuration information, and the obtained channel information can accurately reflect the channel condition of the predicted antenna so as to ensure the throughput of the system. The embodiment of the invention can ensure the performance of the mobile equipment, particularly the mobile equipment at the edge of the cell by effectively adjusting and predicting the antenna configuration.

Fig. 2 is a flowchart illustrating a predicted antenna reconfiguration method according to a first embodiment of the present invention. The embodiment of the invention provides a method for reconfiguring a predicted antenna, which can be executed by any device for executing the method for reconfiguring the predicted antenna, and the device can be realized by software and/or hardware. In the embodiment of the present invention, the apparatus may be integrated in a base station. As shown in fig. 2, the method includes:

s201, the first base station acquires a first channel signal-to-noise ratio and a first channel correlation measurement.

Wherein the first channel signal-to-noise ratio and the first channel correlation metric are signal-to-noise ratio and correlation metric of a first channel used for communication between the mobile device and the first base station. In this embodiment, the mobile device includes multiple antennas.

Specifically, the first base station may obtain the first channel signal-to-noise ratio and the first channel correlation metric in various ways. For example, after the mobile device accesses the network, the mobile device uses the default configured prediction antenna to perform channel measurement and reports the channel measurement to the first base station, so that the first base station obtains the first channel signal-to-noise ratio and the first channel correlation metric. Or, the first base station measures an uplink signal sent by the mobile device to obtain a first channel signal-to-noise ratio and a first channel correlation metric. Therefore, the present invention is not limited to the specific manner of acquiring the first channel signal-to-noise ratio and the first channel correlation metric by the first base station.

It should be noted that, in any embodiment of the present invention, "first" and "second" are only used to distinguish different base stations or channel signal-to-noise ratios or correlation metrics or predict antenna configuration information, and do not represent a limitation of quantity.

S202, the first base station obtains a prediction range corresponding to the first channel signal-to-noise ratio and the first channel correlation metric according to the mapping relation between the signal-to-noise ratio and the correlation metric and the prediction range.

And the prediction range is the distance between the candidate antenna for data transmission based on the channel information estimated by the prediction antenna and the prediction antenna.

Research shows that the prediction range of a predicted antenna is related to signal-to-noise ratio (SNR) and correlation metric (NMSE) and also to propagation environments, namely line-of-sight (LOS) and non-line-of-sight (NLOS) environments. The correlation metric may be correlation, normalized mean square error, or the like. As shown in fig. 3a and 3b, the higher the correlation of the channel, the smaller the normalized mean square error of the channel.

FIG. 3a shows the correlation with prediction range and SNR, where the horizontal axis represents the prediction range; the vertical axis represents correlation; the SNR is from high to low for the dashed, solid and dashed lines. Taking the circled line in fig. 3a as an example (i.e. in LOS environment), the correlations are 0.96, 0.90 and 0.82 respectively at 1 wavelength in the same prediction range, which shows that the higher the SNR is, the higher the correlation is.

FIG. 3b shows NMSE versus prediction horizon and SNR, where the horizontal axis represents prediction horizon; the vertical axis represents NMSE in units of: dB; the SNR is from high to low for the dashed, solid and dashed lines. Taking the circled line in fig. 3b as an example (i.e. in LOS environment), the NMSE is-5.0 dB, -7.8dB and-11.0 dB respectively at the same prediction range, e.g. 1 wavelength, which shows that the higher the SNR is, the smaller the NMSE is.

Based on the research result, the preset mapping relation between the set signal-to-noise ratio and the correlation metric and the prediction range is preset and stored in the first base station.

Optionally, the network generates the NMSE, SNR, and prediction range mapping table of SNR, NMSE, and prediction range under each base station in advance according to the channel environment, for example, as shown in table 1.

TABLE 1

In table 1, the first column of values represents the NMSE requirement for a channel, the lower the NMSE value, the more relevant the channel; the first row of values represents the SNR of the channel in units of: dB; the remaining values represent the predicted range for the given NMSE and SNR conditions, where the predicted range is expressed in terms of multiples of wavelength, e.g., 1.7 means the predicted range is 1.7 times the wavelength.

For example, referring to table 1, assuming that the value of the first channel correlation metric (i.e., NMSE) is 0.1, and the first channel signal-to-noise ratio is 15dB, the prediction range is 2.3 times the wavelength.

Optionally, after receiving the measurement report of the mobile device, the first base station identifies a prediction range that can be supported by the current SNR and the correlation metric according to table 1.

And the first base station reads the mapping relation between the signal-to-noise ratio and the correlation metric and the prediction range, and searches the mapping relation between the signal-to-noise ratio and the correlation metric and the prediction range to obtain the signal-to-noise ratio of the first channel and the prediction range corresponding to the correlation metric of the first channel.

It is supplementary noted that, when the mapping relationship between the snr and the correlation metric and the prediction range does not include the first channel snr, the snr that is smaller than the first channel snr may be adopted, and meanwhile, the snr closest to the first channel snr replaces the first channel snr, and the prediction range corresponding to the replaced snr under the first channel correlation metric is determined. Similarly, when the mapping relationship between the signal-to-noise ratio and the correlation metric and the prediction range does not include the first channel correlation metric, the prediction range corresponding to the replaced channel correlation metric under the first channel signal-to-noise ratio can be determined by referring to the above method.

S203, the first base station obtains first prediction antenna configuration information according to the prediction range and the antenna structure information of the mobile equipment.

Wherein the first predicted antenna configuration information comprises an identification of the predicted antenna.

When the mobile equipment initially accesses the first base station, the mobile equipment reports the antenna structure information of the mobile equipment to the first base station. The antenna structure information may include structure information such as antenna array specifications.

Since the antenna structure information of the mobile device is relatively fixed, the difference of the first predicted antenna configuration information is mainly caused by a change in the prediction range.

S204, the first base station sends the first prediction antenna configuration information to the mobile equipment.

In the embodiment of the invention, the first base station obtains the first prediction antenna configuration information according to the antenna structure information, the first channel signal-to-noise ratio and the first channel correlation measurement of the mobile equipment, and sends the first prediction antenna configuration information to the mobile equipment.

In the above embodiment, for S203, it may be implemented in various ways.

In one implementation, S203 may include: the first base station determines a group where the antenna using the first channel is located by taking the position where the antenna using the first channel is located as a circle center and taking the prediction range as a radius; the first base station determines the antenna with the largest channel signal-to-noise ratio in the group as a predicted antenna; the first base station uses the information of the group and the predicted antenna as first predicted antenna configuration information. Wherein the first predicted antenna configuration information may further include an identification of an alternative antenna served by the predicted antenna. The information of the group includes information such as an identifier of the group.

For example, in fig. 4, V represents the traveling speed of the mobile device, the coil represents the antenna grouping condition, the antennas marked by dotted lines are the predicted antennas in each antenna grouping, the other antennas are the candidate antennas for the group, the antenna spacing is 0.5 times of the wavelength, the antennas are numbered from right to left as 1 to 9 respectively, the channel signal-to-noise ratio of each antenna is 15.2dB, 14.8dB, 13.3dB, 12.5dB, 11.3dB, 10.7dB, 10.2dB, 9.8dB and 9.3dB respectively, and the NMSE is 0.1.

Because the signal-to-noise ratio of the channel of the first antenna is 15.2dB, the prediction range within 2.3 times of the wavelength of the first antenna can be accurately predicted by looking up a table 1, and therefore, when the first antenna is selected as the prediction antenna, 5 antennas with numbers (from right to left) of 1-5 are replaced by the channel information (channel matrix) acquired by the antenna, as shown by the first coil in fig. 4. The signal-to-noise ratio of the channel of the 6 th antenna is 10.7dB, and the channel information of the 4 antennas with the serial numbers of 6-9 can be replaced by the antenna obtained by looking up a 1 table. Finally, the antennas marked by the dotted lines shown in fig. 4 are formed as predicted antennas, the range defined by the coil is a predicted range, and the antennas in the coil are antenna groups.

In another implementation, S203 may include: the first base station determines an antenna using the first channel as a predicted antenna; the first base station determines a group where the predicted antenna is located by taking the position where the predicted antenna is located as a circle center and taking the predicted range as a radius; the first base station uses the information of the group and the predicted antenna as first predicted antenna configuration information. Wherein the first predicted antenna configuration information may further include an identification of an alternative antenna served by the predicted antenna. The information of the group includes information such as an identifier of the group.

Optionally, before S203, the method may further include: the first base station judges the signal-to-noise ratio of the first channel and the size of a preset threshold value.

And when the signal-to-noise ratio of the first channel is greater than or equal to a preset threshold value, carrying out intra-station reconfiguration. Configuring first prediction antenna configuration information for the mobile equipment by the first base station according to the prediction range and the antenna structure information of the mobile equipment, and sending the first prediction antenna configuration information to the mobile equipment, so that the mobile equipment configures a prediction antenna by using the first prediction antenna configuration information, and measures and feeds back channel information by using the prediction antenna; the first base station uses the channel information for data transmission to the predicted antenna.

And when the signal-to-noise ratio of the first channel is smaller than a preset threshold value, performing inter-station reconfiguration, namely, the first base station and one or more neighboring base stations of the first base station interactively negotiate the predicted antenna configuration information of the mobile equipment. At this time. S203 may specifically include: the first base station sends the antenna structure information of the mobile equipment and a second channel signal-to-noise ratio to a second base station, wherein the second channel signal-to-noise ratio is the signal-to-noise ratio of a second channel used for communication between the mobile equipment and the second base station, and the second base station is one or more adjacent base stations of the first base station; and the first base station acquires the first predicted antenna configuration information according to second predicted antenna configuration information fed back by the second base station, wherein the second predicted antenna configuration information is determined by the second base station according to the second channel correlation measurement, the antenna structure information of the mobile equipment and the second channel signal-to-noise ratio. In this embodiment, the second channel signal-to-noise ratio is obtained by measuring, by the mobile device, a downlink signal transmitted by the second base station. The second channel correlation metric is preset, or is configured for the second base station in advance by the network, and the like, as shown in table 1.

Therefore, after receiving the antenna structure information and the second channel signal-to-noise ratio of the mobile device sent by the first base station, the second base station may obtain the second predicted antenna configuration information by using the same processing method as that used in the above embodiment for obtaining the first predicted antenna configuration information by the first base station according to the antenna structure information and the second channel signal-to-noise ratio of the mobile device and the second channel correlation metric, which is not described herein again.

Optionally, the first method: the second base station can obtain second prediction antenna configuration information according to the signal-to-noise ratio and the correlation measurement of a channel used for communication with the terminal equipment, which are obtained by the second base station; the second method comprises the following steps: the second base station may obtain second predicted antenna configuration information by integrating the signal-to-noise ratio and the correlation metric of the channel used for communication with the terminal device, the second channel correlation metric, the received antenna structure information of the mobile device, and the second channel signal-to-noise ratio, which are obtained by the second base station. In contrast, the second predicted antenna configuration information obtained by the second mode is used for predicting antenna reconfiguration, so that the channel condition of the predicted antenna can be more accurately reflected, and the throughput of the system is further ensured.

The obtaining, by the first base station, the first predicted antenna configuration information according to the second predicted antenna configuration information fed back by the second base station may include: and the first base station obtains first predicted antenna configuration information according to the sparsest principle based on second predicted antenna configuration information fed back by the second base station. At this time, the first predicted antenna configuration information may further include an identification of a serving base station of the predicted antenna of the mobile device, the serving base station including the first base station and the second base station.

For example, fig. 5 shows that the predicted antenna configuration information of the mobile device 54 is negotiated among the first base station 51, the second base station 52, and the second base station 53, where the second base station 52 and the second base station 53 are neighboring base stations of the first base station 51. In this scenario, the method for predicting antenna reconfiguration may include:

s501, the first base station 51 receives the channel measurement information sent by the mobile device 54.

The channel measurement information includes information such as a first channel signal-to-noise ratio and correlation metric for a first channel between the mobile device 54 and the first base station, a second channel signal-to-noise ratio for a second channel between the mobile device 54 and the second base station 52 and 53, and so on. The information such as the second channel signal-to-noise ratio and the second channel correlation metric corresponding to the second base station 52 and the second base station 53 may be the same or different, and the embodiment of the present invention does not limit the information.

S502, the first base station 51 determines the first channel signal-to-noise ratio and a preset threshold, and if the determination result is that the first channel signal-to-noise ratio is smaller than the preset threshold, the first base station 51, the second base station 52, and the second base station 53 configure the first predicted antenna configuration information for the mobile device together.

In addition, if the first channel snr is greater than or equal to the preset threshold, the first base station 51 independently configures the first predicted antenna configuration information for the mobile device 54, which is not described herein again.

S503, the first base station 51 sends the antenna structure information of the mobile device 54 and the second channel snr to the second base station 52 and the second base station 53.

S504, the second base station 52 and the second base station 53 determine second predicted antenna configuration information according to the second channel correlation metric, the antenna structure information of the mobile device 54 and the second channel signal-to-noise ratio.

The second predicted antenna configuration information may include information such as a predicted antenna identification, an identification of an alternative antenna served by the predicted antenna/an identification of a group of antenna groups, and the like.

S505, the second base station 52 and the second base station 53 feed back the second predicted antenna configuration information to the first base station 51.

S506, the first base station 51 selects the most sparse predicted antenna configuration from the second predicted antenna configuration information to obtain the first predicted antenna configuration information.

Specifically, the first base station 51 selects a predicted antenna configuration from the feedback of the second base station 52 and the second base station 53, fuses the configuration of the first base station 51, and then issues the configuration to the mobile device 54. The first predicted antenna configuration information may include a serving base station identifier of the predicted antenna, an identifier of an alternative antenna served by the predicted antenna, an identifier of a group served by the predicted antenna, or the like.

An example of S506 is illustrated. As shown in fig. 6, the second predicted antenna configuration information generated by the second base station 52 is as shown in the first row; the second predicted antenna configuration information generated by the second base station 53 is as shown in the second row; in view of reducing the feedback overhead, i.e., selecting the decision result under the sparsest predictive antenna configuration criterion, the first base station 51 determines the first predictive antenna configuration information as shown in the third row, and configures different antennas of the mobile device 54 to be simultaneously served by different base stations according to the first predictive antenna configuration information.

S507, the first base station 51 sends the first predicted antenna configuration information to the mobile device 54.

In the above embodiments, the first channel signal-to-noise ratio and the first channel correlation metric are obtained by the mobile device using a predetermined antenna measurement, where the predetermined antenna is configured by the mobile device in a default manner or configured by the first base station and the mobile device in an interactive manner, which is not limited by the present invention.

Correspondingly, the opposite-end embodiment of the base station-side embodiment shown in fig. 2, i.e. the mobile device-side embodiment, is explained below.

Fig. 7 is a flowchart illustrating a fourth method for predicting antenna reconfiguration according to the present invention. The embodiment of the invention provides a method for predicting antenna reconfiguration, which is suitable for a system comprising mobile equipment with a plurality of antennas. The method may be performed by any apparatus performing the predictive antenna reconfiguration method, which may be implemented by software and/or hardware. In the embodiment of the invention, the device can be integrated in a mobile device with a plurality of antennas. As shown in fig. 7, the method includes:

s701, the mobile device receives first predicted antenna configuration information sent by a first base station.

The first predicted antenna configuration information includes a predicted antenna identifier, the first predicted antenna configuration information is obtained by the first base station according to the antenna structure information of the mobile device, the first channel signal-to-noise ratio and the first channel correlation metric, and the first channel signal-to-noise ratio and the first channel correlation metric are the signal-to-noise ratio and the correlation metric of the first channel used for communication between the mobile device and the first base station.

S702, the mobile device configures the prediction antenna according to the identification of the prediction antenna.

Specifically, the mobile device matches the identifier of the preset antenna among the antenna identifiers of the multiple antennas of the mobile device, and configures the matched antenna as a predicted antenna.

The mobile equipment uses the prediction antenna to carry out channel measurement, channel information is obtained and fed back to the first base station, and the first base station uses the channel information to carry out data transmission with the mobile equipment through the prediction antenna.

In the embodiment of the invention, the mobile equipment configures the prediction antenna according to the first prediction antenna configuration information, and the first prediction antenna configuration information is acquired by the first base station according to the first channel signal-to-noise ratio and the first channel correlation measurement, so that the first prediction antenna configuration information can accurately reflect the current condition of a communication channel between the mobile equipment and the first base station, and the channel information measured by using the prediction antenna can accurately reflect the channel condition of the predicted antenna, thereby ensuring the throughput of the system.

Since the embodiment shown in fig. 7 corresponds to the embodiment shown in fig. 2, only the steps of the mobile device side will be briefly described below, and the above-described embodiment of the base station side may be referred to for specific description.

In the above embodiment, the first predicted antenna configuration information may further include a serving base station identification of the predicted antenna, an identification of an alternative antenna served by the predicted antenna, or an identification of a group served by the predicted antenna. Optionally, the first predicted antenna configuration information may further include a serving base station of the predicted antenna, and the like.

Before S701, the method may further include: the mobile equipment measures first channel information by using a preset antenna, wherein the preset antenna is in default configuration of the mobile equipment or is in interactive configuration with the mobile equipment by a first base station; and the mobile equipment sends the first channel information to the first base station.

The above embodiment shows a processing procedure in which the base station stores the mapping relationship between the NMSE, the SNR, and the prediction range, and the base station triggers and generates the predicted antenna reconfiguration information according to the channel information.

In addition, considering that each antenna of the mobile equipment can carry out signal quality measurement, and along with the improvement of hardware capability, the mobile equipment has the characteristics of low cost, large storage and high computing capability, therefore, the mobile equipment can effectively trigger and execute the operation of predicting antenna reconfiguration in real time.

Fig. 8 is a flowchart illustrating a fifth embodiment of a method for predicting antenna reconfiguration according to the present invention. The embodiment of the invention provides a method for reconfiguring a predicted antenna, which can be executed by any device for executing the method for reconfiguring the predicted antenna, and the device can be realized by software and/or hardware. In the embodiment of the invention, the device can be integrated in a mobile device with a plurality of antennas. As shown in fig. 8, the method includes:

s801, the mobile device obtains a channel signal-to-noise ratio and a correlation measurement.

Wherein the channel signal-to-noise ratio and correlation metric are signal-to-noise ratio and correlation metrics of a channel used for communication between the mobile device and a base station, and the mobile device comprises a plurality of antennas.

Specifically, after the mobile device completes the initial access, channel quality measurement is performed to obtain a channel signal-to-noise ratio and a correlation metric.

S802, the mobile equipment obtains the prediction range corresponding to the signal-to-noise ratio and the correlation measurement of the channel according to the mapping relation between the signal-to-noise ratio and the correlation measurement and the prediction range.

Research shows that the prediction range of a predicted antenna is related to signal-to-noise ratio (SNR) and correlation metric (NMSE) and also to propagation environments, namely line-of-sight (LOS) and non-line-of-sight (NLOS) environments. The correlation metric may be correlation, normalized mean square error, or the like. As shown in fig. 3a and 3b, the higher the correlation of the channel, the smaller the normalized mean square error of the channel. The detailed description of fig. 3a and 3b is referred to the embodiment shown in fig. 2, and is not repeated here.

Based on the research result, the mapping relation between the set signal-to-noise ratio and the correlation metric and the prediction range is preset and stored in the mobile equipment.

Optionally, the network generates the NMSE, SNR, and prediction range mapping table of SNR, NMSE, and prediction range under each base station in advance according to the channel environment, for example, as shown in table 1. The network sends the NMSE, SNR, and prediction horizon map to the mobile device.

Specifically, for S802, it may include: and the mobile equipment reads the mapping relation between the signal-to-noise ratio and the correlation measurement and the prediction range to obtain the prediction range supported by the signal-to-noise ratio and the correlation measurement of the channel.

And S803, the mobile device configures a prediction antenna according to the prediction range and the antenna structure information of the mobile device.

Given the antenna structure of the mobile device, the mobile device may determine which antennas of the mobile device to use as predicted antennas and configure them based on the relationship (e.g., mapping) between the prediction horizon, the channel signal-to-noise ratio, and the correlation metric.

In the embodiment of the invention, the mobile equipment configures the prediction antenna according to the antenna structure information, the first channel signal-to-noise ratio and the first channel correlation measurement, so that the prediction antenna can accurately reflect the current condition of a communication channel between the mobile equipment and the first base station, and the channel information measured by using the prediction antenna can accurately reflect the channel condition of the predicted antenna, thereby ensuring the throughput of the system.

In the above embodiments, S803 may be implemented in various ways.

In one implementation, S803 may include: the mobile equipment determines the group of the antennas with the channel signal-to-noise ratio and the correlation measurement by taking the position of the antenna with the channel signal-to-noise ratio and the correlation measurement as the center of a circle and taking the prediction range as the radius; the mobile device configures the antenna in the group with the highest channel signal-to-noise ratio as the predicted antenna.

In another implementation, S803 may include: the mobile equipment determines the antenna with the channel signal-to-noise ratio and the correlation metric as a predicted antenna; the mobile equipment determines the group where the predicted antenna is located by taking the position where the predicted antenna is located as the center of a circle and taking the predicted range as the radius; the mobile device configures the predicted antenna to be a predicted antenna within the group.

It should be noted that, since the mobile device includes multiple antennas, and there may be one or at least two antennas in the multiple antennas as predicted antennas, in the above embodiment, the multiple antennas are divided into different groups according to the antenna structure information and the predicted range of the mobile device, and then in each group, one of the antennas is determined as a predicted antenna, and the remaining antennas are alternative antennas.

On the basis of the foregoing embodiment, before S802, the method may further include: the mobile device receives a system message carrying a mapping relationship between the signal-to-noise ratio and the correlation metric and the prediction range.

Specifically, the wireless system generates a mapping relationship between the SNR and the NMSE and the prediction range in each base station in advance according to the channel environment. The wireless system issues the mapping relationship to the mobile device and/or the base station through a system message.

Further, after S803, the method may further include: the mobile equipment sends the configuration information of the prediction antenna to the base station; and receiving a configuration confirmation message of the predicted antenna fed back by the base station. This embodiment may further ensure that the success of the antenna reconfiguration is predicted.

It should be added that, in the above embodiments, the base station and the mobile device respectively reconfigure the predicted antenna, and in practical application, a negotiation process between the mobile device and the base station may be triggered according to information such as a service status.

Fig. 9 is a schematic structural diagram of a predicted antenna reconfiguration apparatus according to a first embodiment of the present invention. The embodiment of the invention provides a device for reconfiguring a predicted antenna, which can be realized by software and/or hardware. In the embodiment of the present invention, the apparatus may be integrated in a base station. As shown in fig. 9, the predicted antenna reconfiguration apparatus 90 includes: an acquisition module 91, a processing module 92 and a sending module 93. The processing module 92 includes a first processing unit 921 and a second processing unit 922.

The obtaining module 91 is configured to obtain a first channel signal-to-noise ratio and a first channel correlation metric, where the first channel signal-to-noise ratio and the first channel correlation metric are signal-to-noise ratio and correlation metric of a first channel used for communication between a mobile device and the predicted antenna reconfiguration apparatus 90, and the mobile device includes a plurality of antennas. The first processing unit 921 is configured to obtain a prediction range corresponding to the first channel signal-to-noise ratio and the first channel correlation metric according to a mapping relationship between the signal-to-noise ratio and the correlation metric and the prediction range, where the prediction range is a distance between an alternative antenna for performing data transmission based on channel information estimated by a prediction antenna and the prediction antenna. The second processing unit 922 is configured to obtain first predicted antenna configuration information according to the predicted range and the antenna structure information of the mobile device, where the first predicted antenna configuration information includes an identifier of the predicted antenna. The sending module 93 is configured to send the first predicted antenna configuration information to the mobile device.

The apparatus of this embodiment may be used to implement the technical solution of the method embodiment shown in fig. 2, and the implementation principle and the technical effect are similar, which are not described herein again.

In the above embodiment, the second processing unit 922 may specifically be configured to: determining a group where the antenna using the first channel is located by taking the position where the antenna using the first channel is located as a circle center and taking the prediction range as a radius; determining the antenna with the largest channel signal-to-noise ratio in the group as a predicted antenna; and using the information of the group and the predicted antenna as first predicted antenna configuration information. The first predicted antenna configuration information may also include an identification of an alternative antenna served by the predicted antenna. The information of the group includes information such as an identifier of the group.

Optionally, the second processing unit 922 may be specifically configured to: determining an antenna using the first channel as a predicted antenna; determining a group where the predicted antenna is located by taking the position where the predicted antenna is located as a circle center and the predicted range as a radius; and taking the information of the group and the predicted antenna as first predicted antenna configuration information. Wherein the first predicted antenna configuration information may further include an identification of an alternative antenna served by the predicted antenna. The information of the group includes information such as an identifier of the group.

Further, the predicted antenna reconfiguration apparatus 90 may further include: a decision block (not shown). The judging module can be used for judging the signal-to-noise ratio of the first channel and the size of the preset threshold.

If the determining module determines that the first channel signal-to-noise ratio is greater than or equal to the preset threshold, the second processing unit 922 is triggered to obtain first predicted antenna configuration information according to the predicted range and the antenna structure information of the mobile device.

If the determining module determines that the signal-to-noise ratio of the first channel is smaller than the preset threshold, the second processing unit 922 may be specifically configured to: and sending the antenna structure information of the mobile equipment and the second channel signal-to-noise ratio to the second base station. The second channel signal-to-noise ratio is a signal-to-noise ratio of a second channel used for communication between the mobile equipment and a second base station, and the second base station is one or more adjacent base stations of the first base station; and acquiring first predicted antenna configuration information according to second predicted antenna configuration information fed back by the second base station. And the second predicted antenna configuration information is determined by the second base station according to the second channel correlation measurement, the antenna structure information of the mobile equipment and the second channel signal-to-noise ratio.

At this time, when the second processing unit 922 is configured to obtain the first predicted antenna configuration information according to the second predicted antenna configuration information fed back by the second base station, the method may specifically be: and obtaining first predicted antenna configuration information according to the sparsest principle based on second predicted antenna configuration information fed back by the second base station. Optionally, the first predicted antenna configuration information may also include an identification of a serving base station of the predicted antenna of the mobile device, the serving base station including the base station integrated with the predicted antenna reconfiguration apparatus 90 and the second base station.

Optionally, the first channel signal-to-noise ratio and the first channel correlation metric are obtained by the mobile device using pre-set predicted antenna measurements. The preset predicted antenna is configured by the mobile device by default or by the base station integrated with the predicted antenna reconfiguration device 90.

The embodiment of the invention also provides a system for predicting the reconfiguration of the antenna. The system comprises: a mobile device and a predictive antenna reconfiguration apparatus as provided in any one of the embodiments above, wherein the mobile device comprises a plurality of antennas.

Fig. 10 is a schematic structural diagram of a second predicted antenna reconfiguration apparatus according to an embodiment of the present invention. The embodiment of the invention provides a device for reconfiguring a predicted antenna, which can be realized by software and/or hardware. In the embodiment of the present invention, the apparatus may be integrated in a base station. As shown in fig. 10, the predicted antenna reconfiguration apparatus 100 includes: an acquisition module 101 and a processing module 102. The processing module 102 includes a first processing unit 1021 and a second processing unit 1022.

The obtaining module 101 is configured to obtain a channel signal-to-noise ratio and a correlation metric, where the channel signal-to-noise ratio and the correlation metric are of a channel used for communication between a mobile device and a base station, and the mobile device includes multiple antennas. The first processing unit 1021 is configured to obtain a prediction range corresponding to the channel signal-to-noise ratio and the correlation metric according to a mapping relationship between the signal-to-noise ratio and the correlation metric and the prediction range, where the prediction range is a distance between an alternative antenna for performing data transmission based on channel information estimated by a prediction antenna and the prediction antenna. The second processing unit 1022 is configured to configure a predicted antenna according to the predicted range and the antenna structure information of the mobile device.

The apparatus of this embodiment may be used to implement the technical solution of the method embodiment shown in fig. 8, and the implementation principle and the technical effect are similar, which are not described herein again.

In the foregoing embodiment, the second processing unit 1022 may specifically be configured to: determining a group of the antennas with the channel signal-to-noise ratio and the correlation measurement by taking the position of the antenna with the channel signal-to-noise ratio and the correlation measurement as a circle center and the prediction range as a radius; the antenna with the largest channel signal-to-noise ratio in the group is configured as the predicted antenna.

In another implementation manner, the second processing unit 1022 may specifically be configured to: determining the antenna with the channel signal-to-noise ratio and the correlation metric as a predicted antenna; determining the group where the predicted antenna is located by taking the position where the predicted antenna is located as the center of a circle and the predicted range as the radius; the predicted antenna is configured as the predicted antenna within the group.

On the basis of the above embodiment, the predicted antenna reconfiguration apparatus 100 may further include a first receiving module (not shown). The first receiving module may be configured to receive a system message, where the system message carries the mapping relationship between the signal-to-noise ratio and the correlation metric and the prediction range.

Further, the predicted antenna reconfiguration apparatus 100 may further include a transmitting module (not shown) and a second receiving module (not shown). The sending module may be configured to send the configuration information of the predicted antenna to a base station. The second receiving module may be configured to receive a configuration confirmation message of the predicted antenna fed back by the base station. This embodiment may further ensure that the success of the antenna reconfiguration is predicted.

Alternatively, the predicted antenna reconfiguration apparatus 100 may be a mobile device including a plurality of antennas.

Fig. 11 is a schematic structural diagram of a third predicted antenna reconfiguration apparatus according to a third embodiment of the present invention. The embodiment of the invention provides a device for reconfiguring a predicted antenna, which can be realized by software and/or hardware. In the embodiment of the present invention, the apparatus may be integrated in a base station. As shown in fig. 11, the predicted antenna reconfiguration apparatus 110 includes: a processor 111 and a transmitter 112.

The processor 111 is configured to obtain a first channel signal-to-noise ratio and a first channel correlation metric, where the first channel signal-to-noise ratio and the first channel correlation metric are signal-to-noise ratio and correlation metric of a first channel used for communication between a mobile device and the predicted antenna reconfiguration apparatus 110, and the mobile device includes a plurality of antennas; obtaining a prediction range corresponding to the first channel signal-to-noise ratio and the first channel correlation metric according to the mapping relation between the signal-to-noise ratio and the correlation metric and the prediction range, wherein the prediction range is the distance between an alternative antenna for data transmission based on the channel information estimated by the prediction antenna and the prediction antenna; and obtaining first predicted antenna configuration information according to the prediction range and the antenna structure information of the mobile equipment, wherein the first predicted antenna configuration information comprises the identification of the predicted antenna. The transmitter 112 is configured to transmit the first predicted antenna configuration information to the mobile device.

In one embodiment, the processor 111 is configured to, when obtaining the first predicted antenna configuration information according to the predicted range and the antenna structure information of the mobile device, specifically: determining a group where the antenna using the first channel is located by taking the position where the antenna using the first channel is located as a circle center and taking the prediction range as a radius; determining the antenna with the largest channel signal-to-noise ratio in the group as a predicted antenna; and using the information of the group and the predicted antenna as first predicted antenna configuration information. The first predicted antenna configuration information may also include an identification of an alternative antenna served by the predicted antenna. The information of the group includes information such as an identifier of the group.

In another embodiment, the processor 111 is configured to, when obtaining the first predicted antenna configuration information according to the predicted range and the antenna structure information of the mobile device, specifically: determining an antenna using the first channel as a predicted antenna; determining a group where the predicted antenna is located by taking the position where the predicted antenna is located as a circle center and the predicted range as a radius; and taking the information of the group and the predicted antenna as first predicted antenna configuration information. Wherein the first predicted antenna configuration information may further include an identification of an alternative antenna served by the predicted antenna. The information of the group includes information such as an identifier of the group.

Further, the processor 111 may be further configured to determine the first channel snr and a preset threshold.

If the first channel snr is greater than or equal to the predetermined threshold, the processor 111 performs the following operations in the processing manner described in the foregoing embodiment: and obtaining first predicted antenna configuration information according to the predicted range and the antenna structure information of the mobile equipment.

If the determining module determines that the first channel signal-to-noise ratio is smaller than the preset threshold, the processor 111 is specifically configured to, when obtaining the first predicted antenna configuration information according to the predicted range and the antenna structure information of the mobile device: and sending the antenna structure information of the mobile equipment and the second channel signal-to-noise ratio to the second base station. The second channel signal-to-noise ratio is a signal-to-noise ratio of a second channel used for communication between the mobile equipment and a second base station, and the second base station is one or more adjacent base stations of the first base station; and acquiring first predicted antenna configuration information according to second predicted antenna configuration information fed back by the second base station. And the second predicted antenna configuration information is determined by the second base station according to the second channel correlation measurement, the antenna structure information of the mobile equipment and the second channel signal-to-noise ratio. In this embodiment, when the processor 111 is configured to obtain the first predicted antenna configuration information according to the second predicted antenna configuration information fed back by the second base station, the specific steps are: and obtaining first predicted antenna configuration information according to the sparsest principle based on second predicted antenna configuration information fed back by the second base station. Optionally, the first predicted antenna configuration information may further include an identification of a serving base station of the predicted antenna of the mobile device, the serving base station including the base station integrated with the predicted antenna reconfiguration apparatus 110 and the second base station.

Optionally, the first channel signal-to-noise ratio and the first channel correlation metric are obtained by the mobile device using pre-set predicted antenna measurements. The preset predicted antenna is configured by the mobile device by default or by the base station integrated with the predicted antenna reconfiguration means 110.

Fig. 12 is a schematic structural diagram of a fourth predicted antenna reconfiguration apparatus according to an embodiment of the present invention. As shown in fig. 12, the predicted antenna reconfiguration apparatus 120 provided in the present embodiment includes a processor 121 and a memory 122. The predicted antenna reconfiguration means 120 may further comprise a transmitter 123, a receiver 124. The transmitter 123 and the receiver 124 may be coupled to the processor 121. Wherein the memory 122 stores execution instructions, when the antenna reconfiguration device 120 is predicted to run, the processor 121 communicates with the memory 122, and the processor 121 calls the execution instructions in the memory 122 to perform the following operations:

acquiring a channel signal-to-noise ratio and a correlation metric, wherein the channel signal-to-noise ratio and the correlation metric are the signal-to-noise ratio and the correlation metric of a channel used for communication between a mobile device and a base station, and the mobile device comprises a plurality of antennas; obtaining a prediction range corresponding to the signal-to-noise ratio and the correlation metric of the channel according to the mapping relation between the signal-to-noise ratio and the correlation metric and the prediction range, wherein the prediction range is the distance between an alternative antenna for data transmission based on the channel information estimated by the prediction antenna and the prediction antenna; and configuring a predicted antenna according to the prediction range and the antenna structure information of the mobile equipment.

The processor 121 is configured to, when configuring the predicted antenna according to the predicted range and the antenna structure information of the mobile device, specifically: determining the group of the antennas with the channel signal-to-noise ratio and the correlation metric by taking the position of the antenna with the channel signal-to-noise ratio and the correlation metric as the center of a circle and taking the prediction range as the radius; the antenna with the largest channel signal-to-noise ratio in the group is configured as the predicted antenna.

Optionally, the processor 121 is configured to, when configuring the predicted antenna according to the predicted range and the antenna structure information of the mobile device, specifically: determining the antenna with the channel signal-to-noise ratio and the correlation metric as a predicted antenna; determining the group where the predicted antenna is located by taking the position where the predicted antenna is located as the center of a circle and the predicted range as the radius; the predicted antenna is configured as the predicted antenna within the group.

Further, the receiver 124 may be configured to receive a system message, which carries the mapping relationship between the signal-to-noise ratio and the correlation metric and the prediction range.

Further, the transmitter 123 may be configured to transmit the configuration information of the predicted antenna to the base station. The receiver 124 may also be configured to receive the configuration confirmation message of the predicted antenna fed back by the base station. This embodiment may further ensure that the success of the antenna reconfiguration is predicted.

Alternatively, the predicted antenna reconfiguration means 120 may be a mobile device comprising a plurality of antennas.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units or modules is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or modules may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.

The modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical modules, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method of predictive antenna reconfiguration, the method comprising:

the first base station obtains first predicted antenna configuration information according to the prediction range and the antenna structure information of the mobile equipment, wherein the first predicted antenna configuration information comprises the identification of the predicted antenna;

2. The method of claim 1, wherein the obtaining, by the first base station, the first predicted antenna configuration information according to the predicted range and the antenna structure information of the mobile device comprises:

3. The method of claim 1, wherein the obtaining, by the first base station, the first predicted antenna configuration information according to the predicted range and the antenna structure information of the mobile device comprises:

4. The method according to any of claims 1-3, wherein before the first base station obtains the first predicted antenna configuration information according to the predicted range and the antenna configuration information of the mobile device, the method further comprises:

5. The method of claim 4, wherein when the first channel signal-to-noise ratio is smaller than the preset threshold, the obtaining, by the first base station, first predicted antenna configuration information according to the predicted range and antenna structure information of the mobile device comprises:

6. The method of claim 5, wherein the obtaining, by the first base station, the first predicted antenna configuration information according to the second predicted antenna configuration information fed back by the second base station comprises:

7. The method of any of claims 1-3 and 5-6, wherein the first channel signal-to-noise ratio and the first channel correlation metric are obtained by the mobile device using a preset predicted antenna measurement, the preset predicted antenna being configured by the mobile device by default or by the first base station for the mobile device.

8. A method of predictive antenna reconfiguration, the method comprising:

9. The method of claim 8, wherein the mobile device configures a predicted antenna according to the predicted range and the antenna structure information of the mobile device, comprising:

10. The method of claim 8, wherein the mobile device configures a predicted antenna according to the predicted range and the antenna structure information of the mobile device, comprising:

11. The method according to any of claims 8-10, wherein before the mobile device obtains the prediction range corresponding to the channel signal-to-noise ratio and correlation metric according to the mapping relationship between the signal-to-noise ratio and correlation metric and the prediction range, the method further comprises:

12. The method according to any of claims 8-10, wherein after the mobile device configures the predicted antenna according to the predicted range and the antenna configuration information of the mobile device, the method further comprises:

13. The device for predicting the reconfiguration of the antenna is characterized by comprising an acquisition module, a processing module and a sending module, wherein the processing module comprises a first processing unit and a second processing unit;

the second processing unit is configured to obtain first predicted antenna configuration information according to the predicted range and the antenna structure information of the mobile device, where the first predicted antenna configuration information includes an identifier of the predicted antenna;

14. The apparatus according to claim 13, wherein the second processing unit is specifically configured to:

15. The apparatus according to claim 13, wherein the second processing unit is specifically configured to:

determining an antenna using the first channel as a predicted antenna;

16. The apparatus of any one of claims 13-15, further comprising: a judgment module for judging whether the received signal is correct,

17. The apparatus according to claim 16, wherein if the determining module determines that the first channel snr is smaller than the preset threshold, the second processing unit is specifically configured to:

sending the antenna structure information of the mobile equipment and a second channel signal-to-noise ratio to a second base station, wherein the second channel signal-to-noise ratio is the signal-to-noise ratio of a second channel used for communication between the mobile equipment and the second base station, and the second base station is one or more adjacent base stations of the first base station;

18. The apparatus of claim 17, wherein the second processing unit is configured to, when obtaining the first predicted antenna configuration information according to second predicted antenna configuration information fed back by the second base station, specifically:

19. The apparatus of any of claims 13-15 and 17-18, wherein the first channel signal-to-noise ratio and the first channel correlation metric are obtained by the mobile device using a preset predicted antenna measurement, and wherein the preset predicted antenna is configured by the mobile device by default or by a base station integrated with the predicted antenna reconfiguration device.

20. A predictive antenna reconfiguration system, said system comprising:

a mobile device and a predictive antenna reconfiguration apparatus according to any one of claims 13 to 19, the mobile device comprising a plurality of antennas.

21. An apparatus for predicting antenna reconfiguration, the apparatus comprising an obtaining module and a processing module, wherein the processing module comprises a first processing unit and a second processing unit;

the acquiring module is configured to acquire a channel signal-to-noise ratio and a correlation metric, where the channel signal-to-noise ratio and the correlation metric are of a channel used for communication between a mobile device and a base station, and the mobile device includes multiple antennas;

22. The apparatus according to claim 21, wherein the second processing unit is specifically configured to:

23. The apparatus according to claim 21, wherein the second processing unit is specifically configured to:

configuring the predicted antenna as a predicted antenna within the group.

24. The apparatus according to any of claims 21-23, wherein the apparatus further comprises a first receiving module, configured to receive a system message, where the system message carries a mapping relationship between the signal-to-noise ratio and the correlation metric and a prediction range.

25. The apparatus according to any of claims 21-23, wherein the apparatus further comprises a transmitting module and a second receiving module,

26. The apparatus of any of claims 21-23, wherein the predicted antenna reconfiguration means is a mobile device, and wherein the mobile device comprises a plurality of antennas.